22513125400 has 24 divisors (see below), whose sum is σ = 52343017020. Its totient is φ = 9005250080.

The previous prime is 22513125373. The next prime is 22513125407. The reversal of 22513125400 is 452131522.

It is a super-2 number, since 2×22513125400² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22513125407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56282614 + ... + 56283013.

Almost surely, 2^22513125400 is an apocalyptic number.

22513125400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22513125400 is an abundant number, since it is smaller than the sum of its proper divisors (29829891620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22513125400 is a wasteful number, since it uses less digits than its factorization.

22513125400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112565643 (or 112565634 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 22513125400 its reverse (452131522), we get a palindrome (22965256922).

The spelling of 22513125400 in words is "twenty-two billion, five hundred thirteen million, one hundred twenty-five thousand, four hundred".